使用StackPanel修复用户定义标头上的DataGrid标头排序

<DataGrid>
    <DataGrid.Columns>
        <DataGridTextColumn Header="Column 1" Binding="{Binding Property1}">
            <DataGridTextColumn.HeaderTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="Column 1" />
                        <Button Click="SortButton_Click">
                            <Image Source="sort_icon.png" />
                        </Button>
                    </StackPanel>
                </DataTemplate>
            </DataGridTextColumn.HeaderTemplate>
        </DataGridTextColumn>
        <!-- 其他列定义 -->
    </DataGrid.Columns>
</DataGrid>

private void SortButton_Click(object sender, RoutedEventArgs e)
{
    Button sortButton = (Button)sender;
    DataGridColumnHeader columnHeader = FindParent<DataGridColumnHeader>(sortButton);
    DataGrid dataGrid = FindParent<DataGrid>(columnHeader);

    // 获取列的绑定路径
    string bindingPath = ((Binding)columnHeader.Column.ClipboardContentBinding).Path.Path;

    // 获取数据源
    IEnumerable<object> itemsSource = dataGrid.ItemsSource as IEnumerable<object>;

    // 对数据源进行排序
    IEnumerable<object> sortedItems = itemsSource.OrderBy(item => item.GetType().GetProperty(bindingPath).GetValue(item));

    // 更新DataGrid的ItemsSource
    dataGrid.ItemsSource = sortedItems;
}